Free-standing 2D nanorafts by assembly of 1D nanorods for biomolecule sensing

Ren Cai, Yaping Du, Dan Yang, Guohua Jia, Bowen Zhu, Bo Chen, Yifan Lyu, Kangfu Chen, Dechao Chen, Wei Chen, Lu Yang, Yuliang Zhao, Zhuo Chen, Weihong Tan

Research output: Contribution to journalArticle

23 Scopus citations

Abstract

Novel materials from self-assembled nanocrystals hold great promise for applications ranging from inorganic catalysis to bio-imaging. However, because of the inherent anisotropic properties, it is challenging to assemble one-dimensional (1D) nanorods into higher-order structures (e.g. 2D sheets or 3D networks) without any support. Here, we have developed a facile strategy for the direct self-assembly of 1D nanorods into free-standing 2D nanorafts with lateral dimensions up to several micrometers. As a general approach, 2D nanorafts with diverse compositions, e.g. MgF2, WO2, CdS, ZnS, and ZnSe nanorafts, have been fabricated from the assembly of their 1D building blocks. More importantly, these nanorafts show high stability even when dispersed in different solvents, making them suitable for various applications. Because of their high porosity and strong adsorption capability, MgF2 nanorafts were investigated to illustrate the collective advantages generated from the assembly platform. Moreover, flexibility in the composition and structure of the building blocks demonstrated in this work will lead to next generation materials with rich functionalities.

Original languageEnglish (US)
Pages (from-to)12169-12176
Number of pages8
JournalNanoscale
Volume11
Issue number25
DOIs
StatePublished - Jul 7 2019

ASJC Scopus subject areas

  • Materials Science(all)

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